Bucket for handling plastic material.



A. J. STOESER.

BUCKET FOR HANDLING PLASTIC MATERIAL.

APPLICATION FILED IAN. 10,.19l3.

1,173,322. Patented Feb. 29,1916.

THE COLUMBIA PLANOGRAPH co.. WASHINGTON. n. c.

PATNT @FFTQE.

BUCKET FOR HANDLING PLASTIC MATERIAL.

Specification of Letters Patent.

Patented Feb. 29, 1916.

Original application filed December 22, 1911, Serial No. 667,345. Divided and this application filed January To all whom it may concern:

Be it known that 1, ALEXANDER J. S'ronsnn, a citizen of the United States, and a resident of Chicago, (look county, Illinois, have invented certain new and useful Improvements in Buckets for Handling PlastioMaterial, of which the following is a specification.

My invention relates generally to buckets for handling plastic material, and has particular reference to buckets for handling concrete.

This application is a division of my application Serial No. (367,3-ft5 filed December 22, 1911, entitled Apparatus for erecting concrete structures.

The general object of my invention is to provide a bucket for the handling of concrete and the like, and a particular object of my invention is to provide a bucket for the more convenient placing of concrete in molds.

My invention consists generally in a bucket having a hinged door at the bottom and manually operable means for opening and closing the door which means is also adapted to engage the side of the bucket to lock the door in closed position against the bottom.

My invention also consists in a quadrangular bucket open at the top and closed at the bottom by a hinged door swingably attached to the bucket, a hand rod swingably attached to the door and extending up wardly therefrom, the free end of the hand rod being formed and adapted to engage the bucket side to hold the door against the bottom, the hand rod also being movable from engagement with the side of the bucket to open the door and swingable back and forth to assist in the proper discharge and distribution of the concrete from the bucket.

My invention consists further in the unique construction, arrangement and combination of parts whereby the above mentioned objects, and others which will appear hereinafter, are attained.

My invention will be more readily understood by reference to the accompanying drawings illustrating the preferred form thereof and in which;

Figure 1 is a general view of apparatus for erecting concrete structures illustrating the use of my unique bucket therewith; Fig. 2 is an enlarged perspective view of the Serial No. 741,237.

bucket; Fig. 8 is a transverse vertical section of the bucket showing the door locked in position by engagement of the hand lever with the side of the bucket; and Fig. 4: is a detail View illustrating the hand rod in locked engagement with the bucket side.

In order that the use of my bucket may be better understood, 1 have shown, in Fig. 1 of the drawings, apparatus for erecting concrete structures with which my bucket is particularly adapted to cotiperate. This apparatus forms no part of the present invention, the same forming subject matter of my pending application mentioned above, and, therefore, I shall only describe it briefly. It consists of a concrete mold comprising outer and inner walls 20 and 21 respectively, which in practice are very often but four or five inches apart, thereby forming a very narrow mold space. Upon the mold walls is mounted mechanism 30 for elevating and distributing the concrete. The apparatus comprises a central mast 31 secured to a base 82 which is supported by the mold walls. Outwardly extending from the mast is a boom 38 carrying a pulley 3% at its outer end. The bucket B is filled with concrete on the ground and then raised by means of the pulley. In erecting large structures it is customary to provide a bucket adapted to carry a quantity of concrete weighing more than a person can lift. Hence after the concrete is raised by means of the pulley, mechanism is provided for moving the bucket over the form. This comprises an arm 35 which is rotatably mounted upon the mast and which has a sling 36 at its outer end adapted to engage the bucket handle l0. By means of this arm the bucket can be easily moved over the mold space, the workman being free to manipulate the bucket bottom. This feature is very important when erecting high narrow structures, because there is usually but little footing for the workman. EX- perience has proven that a structure of more uniform strength can be secured by distributing concrete in comparatively thin layers of uniform thickness over the entire wall. My bucket, as will be shown hereinafter, is peculiarly adapted for distribution of the concrete in this manner.

The preferred form of bucket as shown is made of sheet iron and has side walls 2, 2, and end walls 3, 3. The bottom of the bucket is rectangular in form and is closed the handle.

by a door 5 which is swingably attached to the side wall of the bucket by hinges 6, 6, in manner to permit it to swing outwardly from the bottom. I prefer to make the bottom of my bucket flat since the buckets are placed upon the ground to be filled and with a flat base they stand without danger of tipping by the impact of the concrete as it is shoveled into them. The side walls 2, 2, preferably extend upwardly and outwardly from the bottom while the end walls, 3, 3, preferably extend upwardly from the bottom in parallel relation. I may, however, extend the end walls outwardly as well as upwardly. The object of making the bucket in this shape is to form a top into which the concrete can be easily shoveled or placed and a constricted bottom through which the concrete can be guided easily into narrow mold spaces. I also adapt the bucket to deposit the concrete just where wanted, and in necessary or desired quantities. For the purpose of controlling the flow of concrete through the bottom and for other purposes later to be described, I provide a rod 7 and attach one end to an eye 7 on the inside of the door 5. The rod 7 is thereby adapted to swing transversely and longitudinally of the bucket with the eye 7 as a pivot. At the upper end of the rod 7 I form a ring or loop 8, which provides a convenient hand grasp and also a convenienthook or latch for engagement with the side wall of the bucket. As shown in Fig. 3 when the loop 8 is in engagement with the side wall it holds the door tightly closed against the bottom. The weight of the material in the bucket when the rod is in this position tends to increase the locking efiectiveness of the rod. To prevent the rod from possible longitudinal movement when in locked position, I may form a notch 10 in the side of the bucket for the reception of the lower portion 8 of To open the bottom it is but necessary to swing the handle inwardly from engagement with the side wall, whence the weight of the concrete will tend to open the bottom, but the extent of the opening can be conveniently controlled by means of the hand rod. Plastic concrete adheres very strongly to any receptacle in which it is placed and considerable difficulty is often encountered in discharging it. The constricted bottom of my bucket also causes the concrete to pack therein and increases the dithculty of free discharge. It is especially difficult to start the concrete flowing. For this purpose I use the hand rod 7 which as before stated is secured to the bottom to permit swinging movement thereof in all directions. Hence when the hand rod is moved from the wall engaging position as shown in Fig. 3, it is lowered to open the bottom to the desired extent and then swung back and forth as indicated by the different dotted positions in Fig. 2. This swinging movement loosens the concrete and causes it freely to flow through the bottom. It will be seen therefore that I provide two means of regulating the flow of concrete through the bottom, first by opening the bottom more or less, and second by swinging the hand rod with a greater or less movement, thereby forcing the concrete through the bottom at a greater or less velocity.

From the foregoing it is clear that the objects of my-invention are attained by the bucket herein shown and described. I can, however, conceive of other constructions whereby the substantial objects can be ob tained and feel that others skilled in the art to-which this appertains will be enabled by this disclosure to conceive of other structures and for this reason I do not wish to limit myself to the specific construction herein shown and described.

Having thus described my invention, I claim as new and desire to. secure by Letters Patent:

1. A bucket of the class described having a hinged door closing the bottom thereof and a hand rod secured to the bucket door within the bucket and extending upwardly therefrom, as and for the purpose specified.

2. In a bucket of the class described, a body portion open at the top and closed at the bottom by a door hinged to the body portion, a rod secured to the door within the bucket and extending upwardly therefrom,- the upper end of the rod being formed and adapted to engage the upper edge of the bucket to hold the door in closed position.

3. A bucket of the class described open at the top, an outwardly swingable hinged door closing the bottom of the bucket, a rod secured to the door and extending upwardly therefrom, a hand ring at the upper end of the rod, and a notch in the bucket side adapted to accommodate the lower side of the hand ring for the purpose of holding the door in locked position against the bot tom of the bucket.

4:. A bucket for concrete and the like comprising a body portion open at the top, a door arranged at the bottom and closing the same, hinges securing the door to the bucket body, a hand rod swingably secured to the door bottom in manner to permit movement in substantially all directions with the point of attachment as a pivot, the upper end of the hand rod being formed and adapted to engage the bucket body to lock the door in closed position. I

5. A bucket for handling concrete and the like smaller at the bottom than at the top, a hinged door closing the bottom, a hand rod swingablyattached to the door bottom and normally upstanding therefrom with the upper end in engagement with the bucket side, the said rod being movable from engagement with the side to permit opening of the door and swingable to assist in moving concrete through the bottom.

6. A bucket for handling plastic material, having a hinged bottom and upwardly and outwardly extending sides, in combination with a hand rod attached to the bottom, extending upwardly therefrom, and adapted to swing transversely and longitudinally of the bucket, a hand ring at the upper end of the rod, a notch in the bucket side adapted to receive the hand ring, and a handle member secured to the body and adapted to extend over the top of the bucket, as and for the purpose specified.

7. A bucket for handling plastic material comprising in combination a quadrangular bottom, flat upwardly and outwardly extending sides, a door hinged to the sides v adapted to close the bottom and to swing outwardly therefrom, a hand rod attached to the bottom, upstanding therefrom, and having its upper end formed and adapted to engage the side wall of the bucket to hold the door in closed position and to be released &

from engagement with the side Wall to permit opening of the door.

8. A bucket or container for plastic material comprising converging side walls and parallel end walls forming a rectangular top and a smaller rectangular bottom, a door hinged to one of the side walls and adapted to close the bottom, a rod swingably attached to the bottom centrally the length thereof and adjacent one side, said rod extending upwardly from the door and having the upper end formed with a handle and serving as a latch to hold the door closed by engagement with one side wall, said rod enabling convenient manual control of the door and adapted by a swinging movement to facilitate the passage of concrete through the narrow bottom, substantially as described.

In testimony whereof, I have hereunto set my hand, this 8th day of January, 1918, in the presence of two subscribing witnesses.

ALEXANDER J. STOESER.

Witnesses:

ARTHUR W. NELSON, M. SIMON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

